librustc_metadata::locator: Properly detect file type.
Make sure to test for file types against the non-canonicalized name
to avoid detecting the wrong type. Some systems save build artifacts
into associative file stores that do not preserve extensions, and
then link to those using conventionally-named symbolic links that
are the arguments to `rustc` et al. If we canonicalize before
testing the type, we resolve the symlink, the extension is lost and
we might treat rlibs and rmetas as dylibs.
The fix is to introduce a temporary to hold the canonicalized name,
compare against the non-canonical name, and add a comment
explaining what's going on for the would-be maintainer who sees a
potential cleanup.
Signed-off-by: NDan Cross <dcross@google.com>
Showing
想要评论请 注册 或 登录